地球学报Issue(3)：295-304,10.DOI:10.3975/cagsb.2014.03.04
广西花山铀矿床氧化带中铀酰矿物特征、成因及其勘查指示意义
Mineralogical Characteristics and Genesis of the Uranyl Minerals in the Oxidized Zone of the Huashan Deposit, Guangxi, and Their Implications for Deep Ore Exploration
摘要
Abstract
This study aims at revealing the mineralogical characteristics of the uranyl minerals from the oxidized zone of the Huashan deposit in Guangxi and investigating their genetic mechanism in relation to deep ore exploration. The authors have found that there are different mineral assemblages in the three ore spots of the study area, with the assemblage of meta-autunite, autunite and uranophane in the Changchong ore spot, that of kasolite and parsonsite in the Baishijiao ore spot, and that of zeunerite, torbernite and gummite in the Zhaomiping ore spot. These uranyl minerals were derived from the primary U-bearing mineral (uraninite) and formed by the secondary precipitation process in an oxidation environment. Different uranyl mineral assemblages in the three ore spots are attributed to element geochemical backgrounds of the primary ore bodies, types of the complex anions in the groundwater solutions, and Ph values of the U-bearing groundwater. This study indicates that the uranyl minerals can provide important clues for deep exploration; for example, the uranyl minerals are extensively developed along the faults, and their characteristics have recorded the location of the primary ore body and the information of the primary ore grade and sulfide content. It is held that there are good potentials for further prospecting in the Baishijiao and Zhaomiping ore spots.关键词
铀酰矿物/铀矿床/氧化带/花山/广西Key words
uranyl minerals/U deposit/oxidized belt/Huashan/Guangxi分类
天文与地球科学引用本文复制引用
付伟,冯佐海,黄永高,柴明春,康志强,余勇,杨梦力,江超强..广西花山铀矿床氧化带中铀酰矿物特征、成因及其勘查指示意义[J].地球学报,2014,(3):295-304,10.基金项目
本文由国家自然科学青年基金项目(编号:41102051)、广西自然科学基金项目(编号:2012GXNSFAA053187 （编号:41102051）
2013GXNSFBA019209)、广西大规模地质矿产勘查项目(编号:桂财建函[2010]130号)和广西重点实验室建设项目(编号:11-031-20 （编号:桂财建函[2010]130号）
12-071-20)联合资助。 （）
